Catty Noir
type: MusicGroup
popularity: 40
followers: 1108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2c022cdff9149af12fa31f78b31ad12d9c5f12c936d3bd57f83e3020d5e5e0cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbd10c9d-e63e-4df3-8a60-917af2e47c49.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbd10c9d-e63e-4df3-8a60-917af2e47c49.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cbd10c9d-e63e-4df3-8a60-917af2e47c49
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2c022cdff9149af12fa31f78b31ad12d9c5f12c936d3bd57f83e3020d5e5e0cc","name":"Catty Noir","registered_at":"2026-06-12T09:59:29Z","symbol":"NIM0263364","token_address":"0xfad4c53e8b34b426b59c53734267f19e58fa796f","type":"artist","uuid":"cbd10c9d-e63e-4df3-8a60-917af2e47c49"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c022cdff9149af12fa31f78b31ad12d9c5f12c936d3bd57f83e3020d5e5e0cc. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbd10c9d-e63e-4df3-8a60-917af2e47c49.json and https://artists.proofprofile.net/proofs/artist/cbd10c9d-e63e-4df3-8a60-917af2e47c49.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x2c022cdff9149af12fa31f78b31ad12d9c5f12c936d3bd57f83e3020d5e5e0cc","name":"Catty Noir","registered_at":"2026-06-12T09:59:29Z","symbol":"NIM0263364","token_address":"0xfad4c53e8b34b426b59c53734267f19e58fa796f","type":"artist","uuid":"cbd10c9d-e63e-4df3-8a60-917af2e47c49"}